Which device do you want help with?

AT&T HD Voice

Make and receive high-definition voice calls (Clear conversations and reduced background noise)

INSTRUCTIONS & INFO
  1. To turn AT&T HD Voice on or off, swipe down from the top of the screen, then tap the Settings icon.
    Note: To use AT&T HD Voice, both caller and receiver need an AT&T HD Voice-capable phone and must be located in an AT&T HD Voice coverage area.
    device 5101/9007141_01.jpg
  2. Scroll to the Network connections section and tap More networks.
    device 5101/9007141_02.jpg
  3. Tap Mobile networks
    device 5101/9007141_03.jpg
  4. Tap Mobile data.
    device 5101/9007141_04.jpg
  5. Tap the Enhanced LTE Services checkbox to turn AT&T HD Voice on or off.
    Note: Turning AT&T HD Voice off will also disable AT&T Video Call and Advanced Messaging. Learn more about AT&T HD Voice.
    device 5101/9007141_05.jpg

Did you get the help you needed?